Internal cleaning structure for a rotor sand mixer

By setting a cleaning window at the bottom of the rotor sand mixer and using lifting and translation components to control the movement of the plug, the problem of limited cleaning range is solved, efficient internal cleaning is achieved, and the cleaning effect of the sand mixer is improved.

CN224346906UActive Publication Date: 2026-06-12QINGDAO HENGDONG MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HENGDONG MASCH CO LTD
Filing Date
2025-06-11
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing rotor sand mixers are limited by the space at the discharge port during cleaning, resulting in insufficient cleaning range, low cleaning efficiency, and difficulty in reaching dead corners, which affects the sand mixing efficiency and quality.

Method used

A cleaning window is set at the bottom of the rotor sand mixer. The vertical and horizontal movement of the block is controlled by the lifting and translation components to expose the cleaning window, allowing cleaning devices such as high-pressure spray guns to penetrate the interior for cleaning.

🎯Benefits of technology

It expands the cleaning range, avoids the limitations of narrow discharge outlets, improves cleaning efficiency, ensures coverage of cleaning dead corners, prevents material leakage, and enhances the cleaning effect of the sand mixer.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224346906U_ABST
    Figure CN224346906U_ABST
Patent Text Reader

Abstract

The utility model relates to the sand production technical field especially relates to an internal cleaning structure for rotor sand mixer. Its technical scheme includes: machine body bottom plate, plug and slide plate, is equipped with wear -resisting ring at the clean window of machine body bottom plate, the slide plate is established in the just below of clean window through the translation component, the translation component is used for controlling slide plate to carry out horizontal linear motion, the plug is established on the slide plate through the lifting assembly, and the plug is inserted in the wear -resisting ring, the lifting assembly is used for controlling plug to carry out vertical linear motion. The utility model discloses through the clean window of openable cooperation lifting and translation component, has realized the free extension of cleaning tool and quick closure, has promoted the cleaning efficiency and has ensured the sealed safety.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of molding sand production technology, and in particular to an internal cleaning structure for a rotor sand mixer. Background Technology

[0002] Rotary sand mixers are commonly used in the foundry industry for mixing molding sand. After prolonged operation, they often accumulate a large amount of highly adhesive slurry or impurities inside. If not cleaned promptly, this will affect the mixing efficiency and quality, and may even cause equipment blockage or damage. In existing technologies, sand mixers are typically cleaned manually using high-pressure water hoses, but these hoses can only enter the mixer through the discharge port.

[0003] However, the limited space at the discharge outlet severely restricts operators' ability to use water hoses for spraying. The spraying angle is limited, the cleaning area is insufficient, the cleaning efficiency is low, and hard-to-reach areas are difficult to reach, causing significant inconvenience. Even worse, incomplete cleaning can contaminate the next round of sand mixing.

[0004] Therefore, we propose an internal cleaning structure for a rotor sand mixer to solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background art by proposing an internal cleaning structure for a rotor sand mixer.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an internal cleaning structure for a rotor sand mixer, comprising a base plate, a plug, and a sliding plate. A cleaning window is provided on the base plate, and a wear-resistant ring is provided at the cleaning window. The sliding plate is positioned directly below the cleaning window via a translation component, which is used to control the sliding plate to perform horizontal linear movement.

[0007] The plug is mounted on the slide plate via a lifting assembly, and the plug fits into the wear-resistant ring. The lifting assembly is used to control the plug to perform vertical linear movement.

[0008] Preferably, the translation component consists of a base plate, gears, racks, side rods, and elongated holes. The base plate is disposed on the lower surface of the base plate of the machine body, the side rods are symmetrically disposed on the base plate, and the sliding plate is slidably inserted into the side rods.

[0009] Preferably, the rack is disposed on the outer wall of the slide plate, the gear is rotatably disposed on the base plate of the machine body, and the rack and the gear mesh with each other.

[0010] Preferably, the elongated hole is formed at the end of the side rod away from the substrate.

[0011] Preferably, the lifting assembly consists of a screw head, a rotating rod, and a limiting rod. The rotating rod is rotatably mounted on the sliding plate, the screw head is located at the top of the rotating rod and is threaded into the internal screw groove of the plug, and the limiting rod is located on the sliding plate and is slidably inserted into the internal sliding groove of the plug.

[0012] Preferably, the inner wall of the wear-resistant ring is provided with stops at equal intervals at the top, and the upper surface of the plug is provided with grooves at equal intervals that are adapted to the stops, and the stops are fitted into the grooves.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The internal cleaning structure of this utility model rotor sand mixer allows for the opening of a cleaning window at the bottom of the machine body during use, which can be connected to an external power source. When the rotor sand mixer is working normally, the cleaning window is blocked by a plug.

[0015] When it is necessary to clean the inside of the rotor sand mixer, the operator can use the lifting component to control the plug to move vertically away from the cleaning window, and then use the translation component to control the sliding plate to move the plug horizontally away from the cleaning window. In this way, the cleaning window is exposed, and the operator can use a high-pressure spray gun or other devices to reach into the rotor sand mixer through the cleaning window to perform cleaning operations. After the rotor sand mixer is cleaned, the above steps are reversed to reset the plug and reseal the cleaning window.

[0016] During use, the power unit drives the rotating rod to rotate, which in turn drives the screw head to rotate. Through the threaded engagement between the screw head and the plug, and with the plug being limited by the limit rod, the lifting and lowering action of the plug is controlled by the screw principle.

[0017] When the translation component is working, the power unit drives the gear to rotate. Through the meshing action between the gear and the rack, the slide block moves horizontally along the side rod.

[0018] This utility model allows the cleaning window to directly expose the internal space, making it convenient for operators to insert cleaning tools into the interior for cleaning, avoiding the limitations of narrow discharge outlets, and making the use of cleaning devices such as high-pressure spray guns more flexible.

[0019] The cleaning window is sealed with a plug during normal operation to prevent material leakage. During cleaning, the lifting and sliding components work together to facilitate quick opening and closing of the cleaning port. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2This is a three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the translation component structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the lifting component structure of this utility model.

[0024] Figure label:

[0025] 1. Base plate; 2. Wear ring; 3. Plug; 4. Translation assembly; 401. Base plate; 402. Gear; 403. Rack; 404. Side rod; 405. Long hole; 5. Stop block; 6. Slide plate; 7. Lifting assembly; 701. Screw head; 702. Rotating rod; 703. Limiting rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] like Figures 1-4 As shown, the present invention proposes an internal cleaning structure for a rotor sand mixer, including a base plate 1, a plug 3, and a slide plate 6. A cleaning window is provided on the base plate 1, and a wear-resistant ring 2 is provided at the cleaning window. The slide plate 6 is located directly below the cleaning window via a translation component 4, which is used to control the slide plate 6 to perform horizontal linear movement.

[0029] The plug 3 is mounted on the slide plate 6 via the lifting assembly 7, and the plug 3 is fitted into the wear-resistant ring 2. The lifting assembly 7 is used to control the vertical linear movement of the plug 3. During use, the internal cleaning structure of the rotor sand mixer of this utility model can open a cleaning window at the bottom of the rotor sand mixer and connect to an external power source. When the rotor sand mixer is working normally, the cleaning window is blocked by the plug 3 and closed.

[0030] When it is necessary to clean the inside of the rotor sand mixer, the operator can use the lifting component 7 to control the stopper block 3 to descend vertically away from the cleaning window, and then use the translation component 4 to control the sliding plate 6 to move the stopper block 3 horizontally away from the cleaning window. In this way, the cleaning window is exposed, and the operator can use a high-pressure spray gun or other devices to insert it into the rotor sand mixer through the cleaning window to perform cleaning operations. After the rotor sand mixer is cleaned, the above steps are reversed to reset the stopper block 3 and re-seal the cleaning window.

[0031] Example 2

[0032] like Figures 1-4 As shown, the internal cleaning structure for a rotor sand mixer proposed in this utility model, compared with Embodiment 1, further includes: a lifting assembly 7 consisting of a screw head 701, a rotating rod 702, and a limiting rod 703. The rotating rod 702 is rotatably mounted on the slide plate 6. The screw head 701 is located at the top of the rotating rod 702 and is threadedly engaged with the internal thread groove of the plug block 3. The limiting rod 703 is located on the slide plate 6 and is slidably inserted into the internal sliding groove of the plug block 3. During use, the power device drives the rotating rod 702 to rotate, and the rotating rod 702 drives the screw head 701 to rotate. Through the threaded engagement between the screw head 701 and the plug block 3, and the limitation of the plug block 3 by the limiting rod 703, the lifting action of the plug block 3 is controlled under the principle of the screw.

[0033] The translation component 4 consists of a base plate 401, a gear 402, a rack 403, a side rod 404, and an elongated hole 405. The base plate 401 is located on the lower surface of the base plate 1 of the machine body. The side rods 404 are symmetrically arranged on the base plate 401. The slide plate 6 is slidably inserted into the side rod 404. The rack 403 is located on the outer wall of the slide plate 6. The gear 402 is rotatably located on the base plate 1 of the machine body. The rack 403 and the gear 402 mesh. When the translation component 4 is working, the power device drives the gear 402 to rotate. Through the meshing action between the gear 402 and the rack 403, the slide plate 6 drives the block 3 to move horizontally along the side rod 404.

[0034] An elongated hole 405 is provided at one end of the side rod 404 away from the base plate 401. The other end of the side rod 404 can be set on an external fixed structure through the elongated hole 405 in conjunction with an external anchor bolt structure, so as to maintain the stability of the side rod 404 under force.

[0035] The inner wall of the wear ring 2 is provided with equidistant stops 5 at the top. The upper surface of the plug 3 is provided with grooves that are adapted to the stops 5 at equidistant intervals. The stops 5 fit into the grooves. The design of the stops 5 can limit the upward stroke of the plug 3. When the stops 5 fits the grooves completely, the upper surface of the plug 3 is flush with the upper surface of the base plate 1. At the same time, the design of the wear ring 2 allows it to be replaced when the wear ring 2 is worn too badly.

[0036] The gear 402 and rotating rod 702 of this utility model also need to be provided with a power device to enable them to work normally. The power device can be a geared motor structure. As is well known to those skilled in the art, the provision of power is commonplace and belongs to conventional means or common knowledge. It will not be described in detail here. Those skilled in the art can make any selection according to their needs or convenience.

[0037] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An internal cleaning structure for a rotor sand mixer, comprising a base plate (1), a plug (3), and a sliding plate (6), characterized in that: A cleaning window is provided on the base plate (1) of the machine body, and a wear-resistant ring (2) is provided at the cleaning window. The slide plate (6) is located directly below the cleaning window through a translation component (4). The translation component (4) is used to control the slide plate (6) to perform horizontal linear movement. The plug (3) is mounted on the slide plate (6) via a lifting assembly (7), and the plug (3) is fitted into the wear-resistant ring (2). The lifting assembly (7) is used to control the plug (3) to perform vertical linear movement.

2. The internal cleaning structure for a rotor sand mixer according to claim 1, characterized in that: The translation component (4) is composed of a base plate (401), a gear (402), a rack (403), a side rod (404), and an elongated hole (405). The base plate (401) is disposed on the lower surface of the base plate (1) of the machine body. The side rod (404) is symmetrically disposed on the base plate (401). The sliding plate (6) is slidably inserted into the side rod (404).

3. The internal cleaning structure for a rotor sand mixer according to claim 2, characterized in that: The rack (403) is disposed on the outer wall of the slide plate (6), and the gear (402) is rotatably disposed on the base plate (1) of the machine body, and the rack (403) and the gear (402) mesh with each other.

4. The internal cleaning structure for a rotor sand mixer according to claim 2, characterized in that: The elongated hole (405) is formed at the end of the side rod (404) away from the substrate (401).

5. The internal cleaning structure for a rotor sand mixer according to claim 1, characterized in that: The lifting assembly (7) consists of a screw head (701), a rotating rod (702), and a limiting rod (703). The rotating rod (702) is rotatably mounted on the sliding plate (6). The screw head (701) is located at the top of the rotating rod (702) and is threaded into the internal thread groove of the plug (3). The limiting rod (703) is located on the sliding plate (6) and is slidably inserted into the internal sliding groove of the plug (3).

6. The internal cleaning structure for a rotor sand mixer according to claim 1, characterized in that: The wear-resistant ring (2) has equidistant stops (5) on the top of its inner wall, and the upper surface of the plug (3) has equidistant grooves that are adapted to the stops (5), and the stops (5) are fitted into the grooves.